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How to evaluate a math expression given in string form?
...ax.script.ScriptEngine;
import javax.script.ScriptException;
public class Test {
public static void main(String[] args) throws ScriptException {
ScriptEngineManager mgr = new ScriptEngineManager();
ScriptEngine engine = mgr.getEngineByName("JavaScript");
String foo = "40+2";
Syste...
Correct use of flush() in JPA/Hibernate
...read the effects of an operation in the database using JPQL/HQL (e.g. in a test). JPA cannot use cached data when executing these queries, so only stuff that's actually in the DB will be read.
– sleske
Jul 20 '11 at 10:15
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Is there a good reason to use upper case for SQL keywords? [closed]
...on speed really does matter so the 50% of working days I practiced writing test-queries in all lower case really pays off.
– user645280
Jun 16 '14 at 21:11
7
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How can I make setInterval also work when a tab is inactive in Chrome?
...
I have tested it on a project including libraries that were using timers (so I couldn't implement workers myself). It worked like a charm. Thanks for this library
– ArnaudR
Oct 7 '15 at 12:30
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How do I raise a Response Forbidden in django
...only be used if you raise PermissionDenied
Below is a sample view used to test custom templates "403.html", "404.html" and "500.html"; please make sure to set DEBUG=False in project's settings or the framework will show a traceback instead for 404 and 500.
from django.http import HttpResponse
from...
How to clear gradle cache?
... relevant cache.
EDIT 2: due to tir38's question in a comment below, i am testing using an Android Gradle plugin v3.4.2 project. the gradle cache is enabled by org.gradle.caching=true in gradle.properties. i do a couple of clean build and the second time most tasks show FROM-CACHE as their status, ...
how to get program files x86 env variable?
...variable according to MSDN. Unfortunately I don't have 64-bit XP/Vista to test.
– Lexikos
Oct 20 '15 at 21:40
1
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'No Transport' Error w/ jQuery ajax call in IE
...
I tested this on Windows Mobile 7.
After LOTS of time spent to understand, I finally found this:
http://bugs.jquery.com/ticket/10660
The Solution is simple, just set this:
$.support.cors = true;
and Ajax cross domain requ...
Saving grid.arrange() plot to file
...ing saved if not specified, is that ggplot2 invisibly keeps track of the latest plot, and I don't think grid.arrange should mess with this counter private to the package.
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Web Service vs WCF Service
...s Service : System.Web.Services.WebService
{
[WebMethod]
public string Test(string strMsg)
{
return strMsg;
}
}
To develop a service in WCF, we will write the following code
[ServiceContract]
public interface ITest
{
[OperationContract]
string ShowMessage(string strMsg);
}
public ...